My buckeye blocks I showed yesterday... you can do those with your candy squares for the 4-patches. I used 2" squares and 4" for the HSTs, trimmed to 3.5 squares after sewing. But if swap candy is used you'll get a slightly bigger block and will need bigger squares for the HSTs... maybe 4.75"? My finished squares came out at 6.5" using the 2" blocks.